Styl cytowania APA

Gupta, P., & Hira, D. (1979). Operations research: An introduction. S chand.

Styl cytowania Chicago

Gupta, P.K, i D.S Hira. Operations Research: An Introduction. New Delhi: S chand, 1979.

Styl cytowania MLA

Gupta, P.K, i D.S Hira. Operations Research: An Introduction. S chand, 1979.